Fentimans beverages are the product of the simple but time-consuming art of bringing natural wholesome ingredients to condition through three distinct stages: Infusion of the best milled roots, finest herbs and natural flavourings. Slow natural fermentation. Skillful blending. Thomas Fentiman's original botanical brewing processes are still followed today, more than 100 years after they were first developed, to produce the finest natural botanical drinks. It takes a full 7 days to brew each of our unique beverages.